M. B. Campbell

J. F. Joyner

J. F. Joyner worked for the Tennessee Eastman Corporation at the Y-12 Plant.

Frank V. Laska

Laska worked in the 200 East Area at Hanford during the Manhattan Project.

D. J. McMillon

Frank E. Keene

Frank E. Keene was a janitor at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.